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diff --git a/keyboards/vinhcatba/uncertainty/config.h b/keyboards/vinhcatba/uncertainty/config.h
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+++ b/keyboards/vinhcatba/uncertainty/config.h
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+// Copyright 2023 Vinh Le (@vinhcatba)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+/* WS2812 driver config specifically for STM32F401 */
+// DI pin = PB1, which is AF02, TIM3_CH4 (table 9 in datasheet)
+#define RGBLIGHT_LED_MAP { 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 10, 11, 12, 13}    // index 5 = CAPS; index 6 = NUM
+
+#define WS2812_PWM_DRIVER PWMD3     // TIM3
+#define WS2812_PWM_CHANNEL 4        // CH4
+#define WS2812_PWM_PAL_MODE 2       // AF2
+
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM2        // DMA1 Stream 2 for TIM3_UP (table 28 in reference manual)
+#define WS2812_DMA_CHANNEL 5                        // DMA Channel 5 for TIM3_UP  (table 28 in reference manual)
+
+
+#define I2C1_CLOCK_SPEED 400000
+#define I2C1_DUTY_CYCLE FAST_DUTY_CYCLE_16_9
+
+/* eeprom i2c driver config */
+#define EXTERNAL_EEPROM_I2C_BASE_ADDRESS 0b10100000
+#define EXTERNAL_EEPROM_BYTE_COUNT 4096
+#define EXTERNAL_EEPROM_PAGE_SIZE 32
+#define EXTERNAL_EEPROM_WRITE_TIME 10
+//#define EEPROM_I2C_24LC32
+
+/* OLED config */
+#define OLED_UPDATE_INTERVAL 100
+#define OLED_BRIGHTNESS 200